On 01/11/2013 05:00 PM, Paolo Bonzini wrote: > That's not correct. Try hdparm with an IDE disk, or sysfs with a SCSI > disk (recent kernels will also support sysfs with an IDE or virtio-blk > disk) and you'll see that it changes.
Okay, at least at startup, even with cache=writehtough set, I saw bdrv_enable_write_cache() returns true from sd_open(). So you mean this will be reset later (after sd_open())? Thanks, Yuan
